Read Sharp AR-FX8 Service Manual online
AR-FX8 MACHINE OPERATION 7 - 4
5. Trouble codes
*
Only the FAX-related codes are extracted.
A. Details of trouble codes
MAIN SUB
F6
00
Content
Communication trouble (ICU detection)
between ICU and FAX
between ICU and FAX
Details
Communication establishment error/Fleming/
Parity/Protocol error
Parity/Protocol error
Cause
Slave unit PWB connector disconnection
Harness abnormality between slave unit
PWB and ICU PWB.
Slave unit PWB mother board connector pin
breakage
Slave unit ROM abnormality/No ROM/
Reverse insertion of ROM/ROM pin
breakable
Harness abnormality between slave unit
PWB and ICU PWB.
Slave unit PWB mother board connector pin
breakage
Slave unit ROM abnormality/No ROM/
Reverse insertion of ROM/ROM pin
breakable
Check &
Remedy
Remedy
Check connector harness between slave unit
PWB and ICU PWB.
Check grounding of machine.
Check slave unit PWB ROM.
PWB and ICU PWB.
Check grounding of machine.
Check slave unit PWB ROM.
01
Content
FAX expansion flash memory abnormality
(ICU detection)
(ICU detection)
Details
Expansion flash memory with Address data
backup data is installed.
backup data is installed.
Cause
Address data backup data is detected in
expansion flash memory.
Expansion flash memory in which Address
data are backed up with SIM 66-19 is
installed.
expansion flash memory.
Expansion flash memory in which Address
data are backed up with SIM 66-19 is
installed.
Check &
Remedy
Remedy
Restore backup data to Address data with
SIM 66-20, and clear expansion flash
memory with SIM 66-10.
If data are unnecessary, clear expansion
flash memory with SIM 66-10.
SIM 66-20, and clear expansion flash
memory with SIM 66-10.
If data are unnecessary, clear expansion
flash memory with SIM 66-10.
04
Content
FAX modem operation abnormality
Details
FAX PWB modem chip operation
abnormality
abnormality
Cause
The boot test pin in the FAX PWB is shorted
and normal operation is tried.
Modem chip operation abnormality in FAX
PWB
and normal operation is tried.
Modem chip operation abnormality in FAX
PWB
Check &
Remedy
Remedy
Turn on the power again without shorting the
boot test pin in the FAX PWB.
Replace FAX PWB.
boot test pin in the FAX PWB.
Replace FAX PWB.
20
Content
FAX write protect cancel
Details
The write protect DIP switch on the ICU PWB
is released (canceled).
is released (canceled).
Cause
The FAX write protect DIP switch is set to the
FAX write enable position.
FAX PWB trouble
FAX write enable position.
FAX PWB trouble
Check &
Remedy
Remedy
Check the write protect DIP switch on the
ICU PWB.
Replace the FAX PWB and the ICU PWB.
ICU PWB.
Replace the FAX PWB and the ICU PWB.
F6
21
Content
Abnormal combination of the TEL/LIU PWB
and the FAX soft switch
and the FAX soft switch
Details
Abnormal combination of the TEL/LIU PWB
and the FAX PWB information (soft switch)
and the FAX PWB information (soft switch)
Cause
Erroneous destination of the installed TEL/
LIU PWB
Erroneous FAX PWB information
(soft switch)
Abnormal TEL/LIU PWB
LIU PWB
Erroneous FAX PWB information
(soft switch)
Abnormal TEL/LIU PWB
Check &
Remedy
Remedy
Check the destination of the TEL/LIU PWB
Check the FAX PWB information
(soft switches).
Replace the TEL/LIU PWB.
Check the FAX PWB information
(soft switches).
Replace the TEL/LIU PWB.
F6
97
Content
FAX-BOX incompatibility trouble
Details
The FAX-BOX PWB is not one for the AR-
FX8.(FAX detection)
If the FAX-BOX modem controller PWB
information (hard detection) is not for the AR-
FX8, it is judged as an error.
FX8.(FAX detection)
If the FAX-BOX modem controller PWB
information (hard detection) is not for the AR-
FX8, it is judged as an error.
Cause
Because the FAX-BOX modem controller
PWB information (hard detection) is not for
the AR-FX8. (The modem controller PWB for
the AR-FX5 or the AR-FX6 is used.)
PWB information (hard detection) is not for
the AR-FX8. (The modem controller PWB for
the AR-FX5 or the AR-FX6 is used.)
Check &
Remedy
Remedy
Check the FAX-BOX modem controller PWB.
Replace it with a modem controller PWB for
the AR-FX8.
Replace it with a modem controller PWB for
the AR-FX8.
98
Content
Abnormal combination of the FAX-BOX
destination information and the machine
destination information
destination information and the machine
destination information
Details
Abnormal combination of the FAX-BOX
destination information and the machine
destination information
destination information and the machine
destination information
Cause
Combination between the destination
information saved in the EEPROM on the
FAX-BOX and the machine destination
information (set with SIM26-6) is abnormal.
information saved in the EEPROM on the
FAX-BOX and the machine destination
information (set with SIM26-6) is abnormal.
Check &
Remedy
Remedy
Check the FAX-BOX destination.
Check the machine destination setup
(SIM26-6).
Use the proper combination of the machine
and the FAX-BOX.
Check the machine destination setup
(SIM26-6).
Use the proper combination of the machine
and the FAX-BOX.
F7
01
Content
FAX board EEPROM read/write error
Details
EEPROM access error (read/write)
Cause
EEPROM trouble
FAX PWB EEPROM access circuit trouble
FAX PWB EEPROM access circuit trouble
Check &
Remedy
Remedy
Replace FAX PWB.
U1
01
Content
Battery abnormality (on the ICU PWB)
Detail
Backup SRAM battery voltage fall
Cause
Battery life
Battery circuit abnormality
Battery circuit abnormality
Check
and
remedy
and
remedy
Check that the battery voltage is about 2.5V
or above.
Check the battery circuit.
or above.
Check the battery circuit.
02
Content
RTC read abnormality
(common with FAX, on ICU PWB)
(common with FAX, on ICU PWB)
Details
The value read from RTC on ICU PWB is
[EE]h (abnormal).
[EE]h (abnormal).
Cause
RTC circuit abnormality
Battery voltage fall
Battery circuit abnormality
Battery voltage fall
Battery circuit abnormality
Check &
Remedy
Remedy
Set the time again with key operation, and
check that time advances properly.
Check RTC circuit.
Check that battery voltage is about 2.5V or
above.
Check battery circuit.
check that time advances properly.
Check RTC circuit.
Check that battery voltage is about 2.5V or
above.
Check battery circuit.
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